I have iPhone 1G unlocked and jailbreak to v3.01. it used to work fine, but now i cant receive phone calls or texts. I thought it was a Vodafone provider issue, but it is not since the sim cards works with other phone. I can make calls, send texts, emails, the rest works fine.... the only problem is when someone calls me it goes straigh to the voice mail. it works on and off, any suggestion please. Thx!